1299269 has 2 divisors, whose sum is σ = 1299270. Its totient is φ = 1299268.

The previous prime is 1299257. The next prime is 1299283. The reversal of 1299269 is 9629921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1295044 + 4225 = 1138^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299269 - 2⁸ = 1299013 is a prime.

It is a super-2 number, since 2×1299269² = 3376199868722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649634 + 649635.

It is an arithmetic number, because the mean of its divisors is an integer number (649635).

2^1299269 is an apocalyptic number.

It is an amenable number.

1299269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299269 is an equidigital number, since it uses as much as digits as its factorization.

1299269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 38.

The square root of 1299269 is about 1139.8548153164. The cubic root of 1299269 is about 109.1188278502.

The spelling of 1299269 in words is "one million, two hundred ninety-nine thousand, two hundred sixty-nine".